I got my r91 in yesterday. I am more than disappointed. The finish is absolute garbage. It came pre-scratched and I can tell that it will not hold up well. Not even close to the media blasted finish of Super T, GP, or the Kayfun Beta. The adjustable center pin is an absolute joke. If you loosen it at all the positive portion of the atty deck will come loose and cause shorting issues. When it's fully tight, it's slightly recessed from the 510 threads, making it very difficult to make good contact without creating shorts.
If it's really true that someone left Svoemesto and created this to be a quality atomizer, then there is a good reason they left Svoemesto to begin with.
That all being said, I got exactly what I paid for... a poorly made chinese clone. It did come in a nice box though